Elsevier S & T

Adsorption of Metals by Geomedia II: Variables, Mechanisms, and Model Applications

Barnett, Mark; Kent, Douglas

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Table of contents
  • Cover
  • Contentsv
  • Forewordxi
  • Chapter 1. Surface Structure and Reactivity of Iron Oxide–Water Interfaces1
  • 1.1. Introduction2
  • 1.2. Surface X-ray Diffraction Method: Crystal Truncation Rod (CTR) Technique4
  • 1.3. Examples of Structural Models of Different Iron Oxide Interfaces9
  • 1.4. Perspectives and Applications to Surface Reactivity21
  • 1.5. Summary23
  • References24
  • Chapter 2. Anion Sorption Topology on Hematite: Comparison of Arsenate and Silicate31
  • 2.1. Introduction32
  • 2.2. Arsenate Crystal Chemistry in Minerals and on Surfaces33
  • 2.3. Silicate Crystal Chemistry as a Monomer and Small Polymer in Structures and on Surfaces38
  • 2.4. Results46
  • 2.6. Discussion56
  • 2.7. Prospects for Further Studies59
  • 2.8. Conclusions61
  • References62
  • Chapter 3. Molecular Structure of Lead(II) Coprecipitated with Iron(III) Oxyhydroxide67
  • 3.1. Introduction68
  • 3.2. Experimental70
  • 3.3. Experimental Results72
  • 3.4. X-ray Absorption Modeling75
  • 3.5. Discussion and Conclusions84
  • References91
  • Chapter 4. Tracking the Interaction of Transition Metal Ions with Environmental Interfaces using Sec95
  • 4.1. Introduction95
  • 4.2. Experimental97
  • 4.3. Surface Characterization99
  • 4.4. Results105
  • 4.5. Ion Binding111
  • 4.6. Environmental Implications and Summary118
  • References120
  • Chapter 5. Prions, Metals, and Soils125
  • 5.1. Introduction126
  • 5.2. Geochemistry of Hotspots130
  • 5.3. The Double Nature of the Prion Protein136
  • 5.4. Prion Sorption and Transformation on Clays139
  • 5.5. Horizontal Infectivity145
  • 5.6. Conclusions146
  • References146
  • Chapter 6. Associations between Iron Oxyhydroxide Nanoparticle Growth and Metal Adsorption/Structura153
  • 6.1. Introduction154
  • 6.2. Experimental156
  • 6.3. Results161
  • 6.4. Discussion175
  • 6.5. Conclusions179
  • References181
  • Chapter 7. Temperature and Aging Effects on the Surface Speciation of Cd(II) at the Goethite–Water187
  • 7.1. Introduction188
  • 7.2. Experimental192
  • 7.3. Results194
  • 7.4. Discussion197
  • 7.5. Conclusions200
  • References201
  • Chapter 8. Cadmium and Lead Desorption from Kaolinite205
  • 8.1. Introduction205
  • 8.2. Experimental208
  • 8.3. Results213
  • 8.4. Discussion225
  • 8.5. Conclusions228
  • References229
  • Chapter 9. Mechanism of Molybdenum Adsorption on Soils and Soil Minerals Evaluated Using Vibrational235
  • 9.1. Introduction236
  • 9.2. Experimental239
  • 9.3. Results and Discussion244
  • 9.4. Conclusions261
  • References262
  • Chapter 10. Blind Prediction and Parameter Uncertainty – A Sorption Test Case267
  • 10.1. Introduction267
  • 10.2. Methodology271
  • 10.3. Modeling274
  • 10.4. Results and Discussion282
  • 10.5. Summary and Conclusions287
  • References288
  • Chapter 11. Biogeochemical Uranium Redox Transformations: Potential Oxidants of Uraninite293
  • 11.1. Introduction294
  • 11.2. Uranium Oxidation–Reduction Reactions294
  • 11.3. Experimental298
  • 11.4. Results303
  • 11.5. Discussion307
  • 11.6. Implications for Biogeochemical Uranium Cycling310
  • References313
  • Chapter 12. Phosphate Interactions with Iron (Hydr)oxides: Mineralization Pathways and Phosphorus Re321
  • 12.1. Introduction322
  • 12.2. Experimental325
  • 12.3. Results328
  • 12.4. Discussion336
  • 12.5. Conclusion and Implications341
  • References342
  • Chapter 13. Influence of Phosphate on Adsorption and Surface Precipitation of Lead on Iron Oxide Sur349
  • 13.1. Introduction350
  • 13.2. Experimental352
  • 13.3. Results and Discussion361
  • 13.4. Summary370
  • References371
  • Chapter 14. Uranium(VI) Release from Contaminated Vadose Zone Sediments: Estimation of Potential Con375
  • 14.1. Introduction376
  • 14.2. Experimental379
  • 14.3. Results388
  • 14.4. Discussion409
  • 14.5. Concluding Remarks412
  • References413
  • Chapter 15. Arsenic Speciation in Solid Phases of Geothermal Fields417
  • 15.1. Introduction418
  • 15.2. Arsenic in Geothermal Systems419
  • 15.3. Qualitative and Quantitative Characterization of Hot Spring Deposits423
  • 15.4. XAS Analysis of Arsenic Solid-Phase Speciation in Hot Springs427
  • 15.5. Concluding Remarks434
  • References435
  • Chapter 16. Reactive Transport and Residence Times in Unsaturated Fractured Rocks from Field-Scale E441
  • 16.1. Introduction442
  • 16.2. Setting443
  • 16.3. Experimental Setup, Tracer Introduction and Recovery446
  • 16.4. Reactive Transport455
  • 16.5. Tracer Transport461
  • 16.6. Fracture Networks and Flow Simulations464
  • 16.7. Conclusions465
  • References467
  • Subject Index469
Book details
  • Vendor Elsevier S & T
  • SKU 9780444532121
  • ISBN-13 9780080556567
  • Author Barnett, Mark; Kent, Douglas
  • Category Science
  • Subject Environmental Science

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Adsorption of Metals by Geomedia II serves as a needed resource for this topic which has received much attention during the past 25 years. The book provides an in-depth review of the field, followed by numerous chapters that document the current status of adsorption research for a variety of metals by geomedia ranging from individual minerals to sediments and soils. Adsorption mechanisms are detailed and precipitation is presented as a distinct sorption process. Virtually all factors affecting the extent of metal adsorption are examined, including the effects of selected anions, competition among metals, pH, metal concentration, loading, variable metal adsorption capacity, ionic strength, hydrogen exchange and stoichiometry, and solids concentration. A variety of adsorption models are briefly presented and some are used to extend laboratory studies to field sites.

This is a compilation of 25 peer reviewed papers from among the 60+ platform and poster presentations of the symposium "Adsorption of Metals to Geomedia II" at the American Chemical Society (ACS) Meeting, March 27-29, 2006 in Atlanta, Georgia, USA. This symposium is a follow-up to the original held in 1996.

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